/* =========================================
   ATELIER WEB COGNAC — styles.css
   Design system : bleu profond & sable
   Mobile-first · Accessible · Épuré
   ========================================= */

/* ---- Variables CSS ---- */
:root {
  --blue-900: #0B1F3A;
  --blue-700: #163A63;
  --sand-50:  #F7F2E8;
  --sand-100: #EFE6D6;
  --ink-900:  #0E1116;
  --muted:    #5C6773;
  --white:    #FFFFFF;
  --accent:   #C9A86A;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-sm: 0 1px 4px rgba(11, 31, 58, 0.06);
  --shadow-md: 0 4px 20px rgba(11, 31, 58, 0.08);
  --shadow-lg: 0 8px 40px rgba(11, 31, 58, 0.12);

  --font-serif: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-sans:  'Inter', system-ui, -apple-system, sans-serif;

  --transition: 200ms ease;
  --container-max: 1140px;
  --container-pad: clamp(1rem, 5vw, 2.5rem);
}

/* ---- Reset & Base ---- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--sand-50);
  color: var(--ink-900);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* Focus visible — accessibilité */
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol { list-style: none; }

blockquote { quotes: none; }

/* ---- Container ---- */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* =========================================
   TYPOGRAPHIE
   ========================================= */

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  line-height: 1.2;
  font-weight: 600;
  color: var(--blue-900);
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); letter-spacing: -0.015em; }
h3 { font-size: clamp(1.15rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.05rem; }

p {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.7;
}

strong { color: var(--ink-900); font-weight: 600; }

h1 em {
  font-style: italic;
  color: var(--blue-700);
}

/* =========================================
   BOUTONS
   ========================================= */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background-color var(--transition), color var(--transition),
              border-color var(--transition), transform var(--transition),
              box-shadow var(--transition);
  white-space: nowrap;
  text-decoration: none;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

/* Primaire */
.btn-primary {
  background-color: var(--blue-700);
  color: var(--white);
  border-color: var(--blue-700);
}
.btn-primary:hover {
  background-color: var(--blue-900);
  border-color: var(--blue-900);
  box-shadow: 0 4px 16px rgba(22, 58, 99, 0.25);
}

/* Outline clair (sur fond sable) */
.btn-outline {
  background-color: transparent;
  color: var(--blue-700);
  border-color: var(--blue-700);
}
.btn-outline:hover {
  background-color: var(--blue-700);
  color: var(--white);
}

/* Outline sombre (sur fond blanc) */
.btn-outline-dark {
  background-color: transparent;
  color: var(--blue-700);
  border-color: var(--blue-700);
}
.btn-outline-dark:hover {
  background-color: var(--blue-700);
  color: var(--white);
}

/* Accent doré (CTA final) */
.btn-accent {
  background-color: var(--accent);
  color: var(--blue-900);
  border-color: var(--accent);
}
.btn-accent:hover {
  background-color: #b8924f;
  border-color: #b8924f;
  box-shadow: 0 4px 16px rgba(201, 168, 106, 0.35);
}

/* Outline clair (sur fond bleu foncé) */
.btn-outline-light {
  background-color: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.5);
}
.btn-outline-light:hover {
  background-color: rgba(255,255,255,0.12);
  border-color: var(--white);
}

/* Small */
.btn-sm {
  padding: 0.55rem 1.1rem;
  font-size: 0.85rem;
}

/* Full width */
.btn-full { width: 100%; justify-content: center; }

/* =========================================
   SECTIONS
   ========================================= */

.section {
  padding-block: clamp(4rem, 8vw, 7rem);
}

.section--white { background-color: var(--white); }
.section--sand  { background-color: var(--sand-50); }

.section-label {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.section-label--light { color: rgba(201, 168, 106, 0.85); }

.section-header {
  max-width: 680px;
  margin-bottom: 3rem;
}

.section-header h2 {
  margin-bottom: 0.75rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--muted);
  margin-top: 0.5rem;
}

/* =========================================
   ANIMATIONS AU SCROLL
   ========================================= */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Décalage en cascade pour les grilles */
.reveal:nth-child(2) { transition-delay: 0.08s; }
.reveal:nth-child(3) { transition-delay: 0.16s; }
.reveal:nth-child(4) { transition-delay: 0.24s; }
.reveal:nth-child(5) { transition-delay: 0.32s; }
.reveal:nth-child(6) { transition-delay: 0.40s; }

/* =========================================
   HEADER / NAV
   ========================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(247, 242, 232, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--sand-100);
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding-block: 1rem;
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--blue-900);
  white-space: nowrap;
  flex-shrink: 0;
}

.main-nav {
  margin-left: auto;
}

.main-nav ul {
  display: flex;
  gap: 0.25rem;
  align-items: center;
}

.nav-link {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--muted);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background-color var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--blue-900);
  background-color: var(--sand-100);
}

.nav-link.active {
  color: var(--blue-700);
  font-weight: 600;
}

/* Toggle mobile */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  height: 28px;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  margin-left: auto;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--blue-900);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav */
.mobile-nav {
  display: none;
  border-top: 1px solid var(--sand-100);
  padding: 1rem var(--container-pad) 1.5rem;
}

.mobile-nav[aria-hidden="false"] {
  display: block;
}

.mobile-nav ul {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.mobile-nav .nav-link {
  display: block;
  padding: 0.6rem 0.75rem;
  font-size: 1rem;
}

.mobile-nav .btn {
  margin-top: 0.75rem;
  width: 100%;
  justify-content: center;
}

/* =========================================
   HERO
   ========================================= */

.hero {
  background-color: var(--sand-50);
  padding-block: clamp(4rem, 9vw, 8rem);
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-content { max-width: 600px; }

.hero-content h1 {
  margin-bottom: 1.25rem;
}

.hero-sub {
  font-size: 1.05rem;
  color: var(--muted);
  margin-bottom: 2rem;
  max-width: 520px;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Carte hero (droite) */
.hero-card {
  background-color: var(--white);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--sand-100);
  max-width: 440px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background-color: var(--sand-50);
  border: 1px solid var(--sand-100);
  border-radius: 100px;
  padding: 0.35rem 0.85rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--blue-700);
  margin-bottom: 1.5rem;
}

.hero-points {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.hero-point {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.hero-point-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background-color: var(--sand-50);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue-700);
}

.hero-point div {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.hero-point strong {
  font-size: 0.95rem;
  font-family: var(--font-sans);
  font-weight: 600;
  color: var(--ink-900);
}

.hero-point span {
  font-size: 0.85rem;
  color: var(--muted);
}

/* =========================================
   À PROPOS
   ========================================= */

.apropos-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: start;
  margin-bottom: 4rem;
}

.apropos-photo-wrap {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}

.photo-placeholder {
  width: 100%;
  max-width: 320px;
  aspect-ratio: 1;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--sand-100) 0%, var(--sand-50) 100%);
  border: 1px solid var(--sand-100);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
}

.apropos-location-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background-color: var(--blue-900);
  color: var(--white);
  border-radius: 100px;
  padding: 0.4rem 0.9rem;
  font-size: 0.78rem;
  font-weight: 500;
}

.apropos-text {
  max-width: 540px;
}

.apropos-text h2 {
  margin-bottom: 1rem;
}

.apropos-text p + p {
  margin-top: 0.75rem;
}

/* Méthode 4 étapes */
.methode {
  border-top: 1px solid var(--sand-100);
  padding-top: 3rem;
}

.methode-title {
  font-size: 1.2rem;
  color: var(--blue-900);
  margin-bottom: 2rem;
  font-family: var(--font-sans);
  font-weight: 600;
}

.methode-steps {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.methode-step {
  background-color: var(--sand-50);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  border: 1px solid var(--sand-100);
  position: relative;
  transition: box-shadow var(--transition), transform var(--transition);
}

.methode-step:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.step-num {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--accent);
  font-family: var(--font-sans);
}

.step-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background-color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue-700);
  margin-bottom: 1rem;
  box-shadow: var(--shadow-sm);
}

.methode-step h4 {
  margin-bottom: 0.4rem;
  font-size: 0.95rem;
  font-family: var(--font-sans);
  font-weight: 600;
  color: var(--ink-900);
}

.methode-step p {
  font-size: 0.85rem;
  line-height: 1.6;
}

/* =========================================
   OFFRES
   ========================================= */

.inclus-tous {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  background-color: var(--white);
  border: 1px solid var(--sand-100);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 2.5rem;
}

.inclus-tous svg {
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.offres-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.offre-card {
  background-color: var(--white);
  border: 1px solid var(--sand-100);
  border-radius: var(--radius-lg);
  padding: 2rem;
  position: relative;
  transition: box-shadow var(--transition), transform var(--transition);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.offre-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.offre-card--highlighted {
  border-color: var(--blue-700);
  border-width: 2px;
  background-color: var(--white);
  box-shadow: var(--shadow-md);
}

.offre-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--blue-700);
  color: var(--white);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.3rem 0.9rem;
  border-radius: 100px;
  white-space: nowrap;
}

.offre-header {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.offre-header h3 {
  font-size: 1.3rem;
  font-family: var(--font-serif);
  color: var(--blue-900);
}

.offre-subtitle {
  font-size: 0.82rem;
  color: var(--muted);
  font-weight: 500;
}

.offre-price {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  flex-wrap: wrap;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--sand-100);
}

.price-from {
  font-size: 0.78rem;
  color: var(--muted);
}

.price-amount {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--blue-900);
  line-height: 1;
}

.price-ht {
  font-size: 0.78rem;
  color: var(--muted);
}

.offre-bullets {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex: 1;
}

.offre-bullets li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.88rem;
  color: var(--ink-900);
  line-height: 1.5;
}

.offre-bullets li svg {
  flex-shrink: 0;
  color: var(--accent);
  margin-top: 2px;
}

.offre-duration {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  color: var(--muted);
  background-color: var(--sand-50);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.75rem;
}

.offre-duration svg { color: var(--muted); }

/* =========================================
   PROJETS
   ========================================= */

.projets-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.filter-btn {
  padding: 0.5rem 1rem;
  border-radius: 100px;
  border: 1.5px solid var(--sand-100);
  background-color: var(--white);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--muted);
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-sans);
}

.filter-btn:hover {
  border-color: var(--blue-700);
  color: var(--blue-700);
}

.filter-btn--active {
  background-color: var(--blue-700);
  border-color: var(--blue-700);
  color: var(--white);
}

.projets-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.projet-card {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--sand-100);
  transition: box-shadow var(--transition), transform var(--transition);
}

.projet-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.projet-card[data-hidden] {
  display: none;
}

/* Vignettes placeholder avec couleurs distinctes */
.projet-img {
  height: 180px;
  position: relative;
  display: flex;
  align-items: flex-end;
  padding: 1rem;
  background: linear-gradient(135deg, var(--sand-100) 0%, var(--sand-50) 100%);
}
.projet-img--2 {
  background: linear-gradient(135deg, #d6e8f7 0%, #e8f3fb 100%);
}
.projet-img--3 {
  background: linear-gradient(135deg, #d4e8d4 0%, #eaf4ea 100%);
}
.projet-img--4 {
  background: linear-gradient(135deg, #e8d6d6 0%, #f7eaea 100%);
}
.projet-img--5 {
  background: linear-gradient(135deg, #e0d6e8 0%, #f3eaf7 100%);
}
.projet-img--6 {
  background: linear-gradient(135deg, #d6dfe8 0%, #eaf0f7 100%);
}

.projet-sector {
  background-color: var(--white);
  color: var(--blue-700);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.25rem 0.65rem;
  border-radius: 100px;
  box-shadow: var(--shadow-sm);
}

.projet-body {
  padding: 1.25rem 1.5rem 1.5rem;
}

.projet-body h3 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
  font-family: var(--font-sans);
  font-weight: 600;
  color: var(--ink-900);
}

.projet-results {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.projet-results li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--muted);
}

.projet-results li svg { color: var(--accent); flex-shrink: 0; }

.projet-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.83rem;
  font-weight: 600;
  color: var(--blue-700);
  transition: gap var(--transition), color var(--transition);
}

.projet-link:hover { gap: 0.65rem; color: var(--blue-900); }

/* =========================================
   AVIS CLIENTS
   ========================================= */

.avis-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.avis-card {
  background-color: var(--white);
  border: 1px solid var(--sand-100);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: box-shadow var(--transition);
}

.avis-card:hover { box-shadow: var(--shadow-md); }

.avis-stars {
  display: flex;
  gap: 3px;
}

.avis-card blockquote p {
  font-size: 0.92rem;
  color: var(--ink-900);
  line-height: 1.65;
  font-style: italic;
}

.avis-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--sand-100);
}

.avis-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background-color: var(--blue-700);
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  letter-spacing: 0.05em;
}

.avis-author div { display: flex; flex-direction: column; gap: 0.1rem; }

.avis-author strong {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ink-900);
}

.avis-author span {
  font-size: 0.78rem;
  color: var(--muted);
}

/* =========================================
   RÉSERVATION
   ========================================= */

.reservation-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

.calendly-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--sand-100);
  background-color: var(--white);
  min-height: 630px;
}

.calendly-inline-widget { border: none; }

.reservation-alt {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.alt-card {
  background-color: var(--sand-50);
  border: 1px solid var(--sand-100);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
}

.alt-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background-color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue-700);
  box-shadow: var(--shadow-sm);
  margin-bottom: 0.25rem;
}

.alt-card h3 {
  font-size: 1.1rem;
  font-family: var(--font-sans);
  font-weight: 600;
  color: var(--ink-900);
}

.alt-card p {
  font-size: 0.9rem;
}

.delai-reponse {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 0.25rem;
}

/* Formulaire contact */
.contact-form-wrap {
  background-color: var(--white);
  border: 1px solid var(--sand-100);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
}

.contact-form-wrap h3 {
  font-size: 1.05rem;
  font-family: var(--font-sans);
  font-weight: 600;
  color: var(--ink-900);
  margin-bottom: 1.25rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--ink-900);
}

.form-group input,
.form-group textarea {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--ink-900);
  background-color: var(--sand-50);
  border: 1.5px solid var(--sand-100);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.9rem;
  width: 100%;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
  -webkit-appearance: none;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--blue-700);
  box-shadow: 0 0 0 3px rgba(22, 58, 99, 0.1);
}

.form-group input.invalid,
.form-group textarea.invalid {
  border-color: #c0392b;
}

.form-group textarea { resize: vertical; min-height: 100px; }

.form-group--checkbox { flex-direction: row; align-items: flex-start; }

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  cursor: pointer;
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 2px;
  accent-color: var(--blue-700);
  cursor: pointer;
}

.form-error {
  font-size: 0.78rem;
  color: #c0392b;
  display: none;
}

.form-error.visible { display: block; }

.form-success {
  background-color: var(--sand-50);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  font-size: 0.85rem;
  color: var(--ink-900);
  line-height: 1.6;
}

/* =========================================
   CTA FINAL
   ========================================= */

.cta-final {
  background-color: var(--blue-900);
  padding-block: clamp(4rem, 8vw, 7rem);
}

.cta-final-inner {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
}

.cta-final h2 {
  color: var(--white);
  margin-bottom: 1rem;
}

.cta-final-text {
  color: rgba(255,255,255,0.7);
  font-size: 1.05rem;
  margin-bottom: 2.25rem;
  line-height: 1.7;
}

.cta-final-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

/* =========================================
   FOOTER
   ========================================= */

.site-footer {
  background-color: var(--ink-900);
  padding-block: 2.5rem;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  text-align: center;
}

.footer-brand .logo {
  color: var(--white);
  display: block;
  margin-bottom: 0.35rem;
}

.footer-brand p {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.link-btn {
  background: none;
  border: none;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: rgba(255,255,255,0.55);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition);
  padding: 0;
}

.link-btn:hover { color: var(--white); }

.footer-copy {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.35);
}

/* =========================================
   MODALES
   ========================================= */

.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal[hidden] { display: none; }

.modal-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(11, 31, 58, 0.6);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background-color: var(--white);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  max-width: 540px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: modal-in 0.2s ease;
}

@keyframes modal-in {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-content h2 {
  font-size: 1.4rem;
  margin-bottom: 1.25rem;
}

.modal-content p {
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.modal-content a {
  color: var(--blue-700);
  text-decoration: underline;
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: var(--sand-50);
  border: none;
  border-radius: var(--radius-sm);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--muted);
  transition: background-color var(--transition), color var(--transition);
}

.modal-close:hover {
  background-color: var(--sand-100);
  color: var(--ink-900);
}

/* =========================================
   BOUTON RETOUR EN HAUT
   ========================================= */

.back-to-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 90;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--blue-900);
  color: var(--white);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: opacity var(--transition), transform var(--transition),
              background-color var(--transition);
  opacity: 0;
}

.back-to-top:not([hidden]) {
  opacity: 1;
}

.back-to-top[hidden] {
  display: flex; /* override hidden pour animation */
  opacity: 0;
  pointer-events: none;
}

.back-to-top:hover {
  background-color: var(--blue-700);
  transform: translateY(-2px);
}

/* =========================================
   RESPONSIVE — Tablet (min 640px)
   ========================================= */

@media (min-width: 640px) {
  .methode-steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .avis-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .projets-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .offres-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* =========================================
   RESPONSIVE — Desktop (min 900px)
   ========================================= */

@media (min-width: 900px) {

  /* Header */
  .nav-toggle { display: none; }

  /* Hero */
  .hero-inner {
    grid-template-columns: 1fr auto;
    gap: 4rem;
  }

  /* À propos */
  .apropos-grid {
    grid-template-columns: auto 1fr;
    gap: 4rem;
  }

  .photo-placeholder {
    width: 300px;
  }

  /* Méthode */
  .methode-steps {
    grid-template-columns: repeat(4, 1fr);
  }

  /* Offres */
  .offres-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Projets */
  .projets-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Avis */
  .avis-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Réservation */
  .reservation-layout {
    grid-template-columns: 1.4fr 1fr;
  }

  /* Footer */
  .footer-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    text-align: left;
  }
}

/* =========================================
   RESPONSIVE — Large (min 1100px)
   ========================================= */

@media (min-width: 1100px) {
  .hero-card { min-width: 380px; }
}

/* =========================================
   REDUCED MOTION
   ========================================= */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
  html { scroll-behavior: auto; }
}